银川平原为黄河及山洪淤积、冲积而成,是北方高产区之一,但耕地土壤盐渍化现象比较严重,据1962年调查,不同程度盐碱化的耕地面积约占耕地总面积的67.4%.非盐碱地上小麦亩产在450斤以上,而盐碱地上仅80—150斤.因此,同土壤盐碱化作斗争,根治土壤盐害,提高土壤肥力,就成为当前发展农业生产中的重要任务之一. Yinchuan plain siltation and alluviation of the Yellow River and mountains, is one of the northern high yielding areas, but the phenomenon of soil salinization of cultivated land is more serious, according to the 1962 survey, different degrees of arable land accounts for 67.4% of the total area of ​​cultivated land, .Non-saline-alkali wheat yields more than 450 pounds of mu per mu and only 80-150 pounds of saline-alkali soil. Therefore, fighting salinization of soil, root salinization and soil fertility have become important tasks in developing agricultural production one.